$OpenBSD: patch-gtkglext_gtkmm_gl_drawingarea_cc,v 1.1 2016/09/07 20:29:52 ajacoutot Exp $

Fix build with gtk2mm>=2.24.5

--- gtkglext/gtkmm/gl/drawingarea.cc.orig	Sat Mar  1 08:31:04 2003
+++ gtkglext/gtkmm/gl/drawingarea.cc	Wed Sep  7 22:19:48 2016
@@ -17,6 +17,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA.
  */
 
+#include <glibmm.h>
 #include "drawingarea.h"
 
 namespace Gtk
